Data/hora: 24/05/2024 05:27:33

Biblioteca(s): 	Embrapa Suínos e Aves.	
Data corrente: 	12/08/2021	
Data da última atualização: 	12/08/2021	
Autoria: 	BEDIN, F. C. B.; FAUST, M. V.; GUARNERI, G. A.; ASSMANN, T. S.; LAFAY, C. B. B.; SOARES, L. F.; OLIVEIRA, P. A. V. de; SANTOS-TONIAL, L. M. dos.	
Afiliação: 	FLAVIA CHIAMULERA BORSATTI BEDIN, UTFPR; MATEUS VINICIUS FAUST, UTFPR; GIOVANNI ALFREDO GUARNERI, UTFPR; TANGRIANI SIMIONI ASSMANN, UTFPR; CINTIA BOEIRA BATISTA LAFAY, UTFPR; LISIANE FERNANDES SOARES, UTFPR; PAULO ARMANDO VICTORIA DE OLIVEIRA, CNPSA; LARISSA MACEDO DOS SANTOS-TONIAL, UTFPR.	
Título: 	NIR associated to PLS and SVM for fast and non-destructive determination of C, N, P, and K contents in poultry litter.	
Ano de publicação: 	2021	
Fonte/Imprenta: 	Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, v. 245, n. 118834, 2021.	
DOI: 	https://doi.org/10.1016/j.saa.2020.118834	
Idioma: 	Inglês	
Conteúdo: 	Abstract: Using near-infrared (NIR) spectroscopy for poultry litter characterization can be a rapid, non-destructive, and low-cost alternative. This study aims to estimate the C, N, P, and K content in poultry litter samples using for first time NIR spectroscopy. For these purposes, the building models were carried out using Partial Least Squares (PLS) and Support VectorMachines (SVM)methods. A total of 160 litter sampleswere analyzed in poultry houses of different rearing systems, seeking the highest possible variability in their chemical composition. NIR spectroscopy, combinedwith PLS and SVMmethods, is an alternative method for non-destructive C, N, P, and K determination in poultry samples. The regression models using SVM provide better accuracy for all elements, laying the basis for the nonlinear regression approach's application. The K determination on poultry litter using NIR was possible only by the SVM model (R2 = 0.8620 and RPD = 2.7330). Conclusively, the predictive ability was improved using the SVM method.	
Palavras-Chave: 	Organic manures.	
Thesagro: 	Adubo Orgânico; Cama de Galinheiro; Frango; Raio Infravermelho.	
Thesaurus Nal: 	Aviculture; Litters (young animals); Near-infrared spectroscopy; Organic fertilizers; Organic wastes; Support vector machines.	
Categoria do assunto: 	--	
Registro original: 	Embrapa Suínos e Aves (CNPSA)	
Exemplares: 	CNPSA - (22191-1) - UPC - AP - DD -  -  -  - DIS